<template>
  <el-dialog
    v-el-drag-dialog
    title="云农场智慧服务系统"
    :visible.sync="loginFormVisible"
    width="30%"
    style="min-width:400px;"
    center
    :show-close="false"
    :before-close="close"
  >
    <div class="login-container">
      <el-form
        ref="loginForm"
        :model="loginForm"
        :rules="loginRules"
        class="login-form"
        auto-complete="on"
        label-position="left"
      >
        <!-- <div class="title-container">
          <h3 class="title">云农场智慧服务系统</h3>
        </div> -->
        <el-form-item prop="username">
          <span class="svg-container">
            <svg-icon icon-class="user" />
          </span>
          <el-input
            ref="username"
            v-model="loginForm.username"
            placeholder="用户名"
            name="username"
            type="text"
            tabindex="1"
            auto-complete="on"
          />
        </el-form-item>
        <el-tooltip v-model="capsTooltip" content="大写键盘锁定" placement="right" manual style="margin:0;">
          <el-form-item prop="password">
            <span class="svg-container">
              <svg-icon icon-class="password" />
            </span>
            <el-input
              :key="passwordType"
              ref="password"
              v-model="loginForm.password"
              :type="passwordType"
              placeholder="密码"
              name="password"
              tabindex="2"
              auto-complete="on"
              @keyup.native="checkCapslock"
              @blur="capsTooltip = false"
              @keyup.enter.native="handleLogin"
            />
            <span class="show-pwd" @click="showPwd">
              <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
            </span>
          </el-form-item>
        </el-tooltip>
        <!-- <el-button
          :loading="loading"
          type="primary"
          style="width:100%;margin-bottom:30px;"
          @click.native.prevent="handleLogin"
        >登录</el-button> -->
      </el-form>
    </div>
    <div slot="footer" class="dialog-footer" style="display:flex;justify-content:space-between;">
      <el-button style="width:45%;" @click="close">取 消</el-button>
      <el-button style="width:45%;" type="primary" @click.native.prevent="handleLogin">登录</el-button>
      <!-- <div class="fast-login">
        <div class="wechat">
          <svg-icon class="icon" icon-class="wechat" />
          <span class="title">微信登录</span>
        </div>
      </div> -->
    </div>
  </el-dialog>
</template>

<script>
import { validUsername } from '@/utils/validate'
import elDragDialog from '@/directive/el-drag-dialog'
import store from '@/store'

export default {
  name: 'LoginForm',
  directives: { elDragDialog },
  props: {
    loginFormVisible: {
      type: Boolean,
      required: true
    }
  },
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!validUsername(value)) {
        callback(new Error('请输入用户名！'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length === 0) {
        callback(new Error('请输入密码！'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: '',
        password: ''
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', validator: validateUsername }
        ],
        password: [
          { required: true, trigger: 'blur', validator: validatePassword }
        ]
      },
      loading: false,
      passwordType: 'password',
      capsTooltip: false,
      redirect: undefined,
      otherQuery: {}
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        const query = route.query
        if (query) {
          this.redirect = query.redirect
          this.otherQuery = this.getOtherQuery(query)
        }
      },
      immediate: true
    }
  },
  mounted() {
    if (this.loginForm.username === '') {
      this.$refs.username.focus()
    } else if (this.loginForm.password === '') {
      this.$refs.password.focus()
    }
  },
  methods: {
    close() {
      this.$emit('close')
    },
    checkCapslock(e) {
      const { key } = e
      this.capsTooltip = key && key.length === 1 && key >= 'A' && key <= 'Z'
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store
            .dispatch('user/login', this.loginForm)
            .then(res => {
              if (res.role === 2) {
                this.$emit('refresh')
              } else {
                this.$router.push({ path: this.redirect || '/', query: this.otherQuery })
              }
              this.loading = false
            })
            .catch(err => {
              console.log(err)
              this.loading = false
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== 'redirect') {
          acc[cur] = query[cur]
        }
        return acc
      }, {})
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

// $bg: #283443;
$bg: #fff;
$light_gray: #000;
$cursor: #000;
// $light_gray: transparent;
// $cursor: transparent;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}
/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;
    // background-color:rgb(255,255,255);
    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      // &:-webkit-autofill {
      //   box-shadow: 0 0 0px 1000px $bg inset !important;
      //   -webkit-text-fill-color: $cursor !important;
      // }
      &:-internal-autofill-previewed,
      &:-internal-autofill-selected {
          -webkit-text-fill-color: #000000 !important;
          transition: background-color 5000s ease-in-out 0s !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  // min-height: 100%;
  // width: 100%;
  // background-color: $bg;
  // background-color: rgba(0,0,0,0.5);
  // padding: 20px;
  // border-radius: 5px;
  // position: relative;
  // z-index: 2;
  // display: inline-block;
  // margin-left: 10%;
  // overflow: hidden;

  .login-form {
    position: relative;
    width: 100%;
    // max-width: 100%;
    // padding: 160px 35px 0;
    // margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
.dialog-footer {
  flex-wrap: wrap;
  .fast-login {
  width:100%;
  display:flex;
  justify-content: center;
  align-items: center;
  margin-top:22px;
  .wechat {
    color:#08c406;
    cursor:pointer;
    display:flex;
    align-items: center;
    .icon {
      font-size:25px;
      margin-right:10px;
    }
    .title {
      font-size:15px;
    }
  }
}
}

</style>
